130645073 has 8 divisors (see below), whose sum is σ = 140784168. Its totient is φ = 120518784.

The previous prime is 130645061. The next prime is 130645079. The reversal of 130645073 is 370546031.

It can be written as a sum of positive squares in 4 ways, for example, as 6723649 + 123921424 = 2593^2 + 11132^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 130645073 - 2²⁰ = 129596497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130645079) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34565 + ... + 38157.

It is an arithmetic number, because the mean of its divisors is an integer number (17598021).

Almost surely, 2^130645073 is an apocalyptic number.

130645073 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

130645073 is a deficient number, since it is larger than the sum of its proper divisors (10139095).

130645073 is a wasteful number, since it uses less digits than its factorization.

130645073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6403.

The product of its (nonzero) digits is 7560, while the sum is 29.

The square root of 130645073 is about 11430.0075678015. The cubic root of 130645073 is about 507.4162195170.

The spelling of 130645073 in words is "one hundred thirty million, six hundred forty-five thousand, seventy-three".